1) The part C2 at "A" is a 10 microfarad Cap, but I'm not familiar with this symbol. Is it for a electrolytic cap? If so, is it polarity sensitive and what is the polarity, the thick side positive or no polarity?

2) What value does "8K2" represent for the resistor at "B"? I've seen this notation a few times before, but I'm not familiar with it. Does the "K" take the place of the decimal point to avoid confusion? I.E. It is 8.2K as opposed to 82K

1) The part C2 at "A" is a 10 microfarad Cap, but I'm not familiar with this symbol. Is it for a electrolytic cap? If so, is it polarity sensitive and what is the polarity, the thick side positive or no polarity?

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I am stumped!

2) What value does "8K2" represent for the resistor at "B"? I've seen this notation a few times before, but I'm not familiar with it. Does the "K" take the place of the decimal point to avoid confusion? I.E. It is 8.2K as opposed to 82K

Yes. I was thinking 10 to the minus nine and 10 to the minus six when I wrote the programmers shorthand for exponential notation. The digits before the "e" are mantissa digits not exponent digits. I should have written:

10^-9 and 10^-6 since that was where my thought process was.
I learned engineering in the days of the slide rule and we always wrote our answers as:

Thanks to you both for the responses. I guess my assumptions were correct, ... but you know what happens when one assumes!

Now that the Tryptophan is wearing off, I've been thumbing through the Jameco catalogue to put together the components for the above schematic, but I can never seem to exactly match the numbers.

Now, I gather that there is some sort of "generic" numbering system for components? Where can I find a listing of these component "generic" numbers and a description of what they do? Or is there some sort of chart to decode them?

For instance I know a 7805 is a 5v regulator (as a 7812 is a12v and a 7815 is a15v), but the schematic calls for a 78L05. Is there a significance to the "L" that I could find from a generic list?

Of the two with the "L" in them, 78L05ACM is a surface mount (which I don't want to try yet), and the 78L5CZ. Can I assume the "0" in front of the "5" was just a place holder and was dropped, but now what is the significance of the "CZ". And Jameco doesn't give the manufacturer to look up the manufacturer's data sheet.

Thanks to you both for the responses. I guess my assumptions were correct, ... but you know what happens when one assumes!

Now that the Tryptophan is wearing off, I've been thumbing through the Jameco catalogue to put together the components for the above schematic, but I can never seem to exactly match the numbers.

Now, I gather that there is some sort of "generic" numbering system for components? Where can I find a listing of these component "generic" numbers and a description of what they do? Or is there some sort of chart to decode them?

For instance I know a 7805 is a 5v regulator (as a 7812 is a12v and a 7815 is a15v), but the schematic calls for a 78L05. Is there a significance to the "L" that I could find from a generic list?

Of the two with the "L" in them, 78L05ACM is a surface mount (which I don't want to try yet), and the 78L5CZ. Can I assume the "0" in front of the "5" was just a place holder and was dropped, but now what is the significance of the "CZ". And Jameco doesn't give the manufacturer to look up the manufacturer's data sheet.

Click to expand...

The 'L' is for low power - 100mA max current as against 1A max for the 7805.

Every manufacturer has different prefixes, infixes , and suffixes. There really is no standard and you need to add all manner of surface mount devices to the mix. For each manufacturer you need to look for "ordering information" which tells you how to decode their part numbers. It also happens, especially on newer parts, that the data sheet will be out of date.